Exercise – creating a growing twig animation

In this exercise, it’s time to put your newly founded skills to the test. We will be creating an animation where a twig grows procedurally.

Let’s think about the steps we need to take to achieve this effect:

1. Start with a Curve Line primitive.
2. Add noise to this Curve with a Noise Texture.
3. Adding a profile to our Curve.
4. Add thickness control to the Curve.
5. Animate it!

Now that you know the rough outline of how this project will go, let’s get started!

Building your node tree

In the previous demos of this chapter, we have always used a predefined Curve object to start our node tree. This time, we want the Curve to grow, so we will use a Curve Line node.

Figure 8.15: Curve Line node

This will allow us to make the Curve larger or shorter procedurally, which is exactly what we want.

Let’s get started building this node tree!

1. Once...